The Nest Protect smoke alarm is again available for sale, but still lacks the feature that caused it to go away. To me the most interesting feature of the Nest was the ability to silence the alarm using hand motions. We've all been there when putting a sear on dinner a little smoke gathers up near the ceiling and you spend your meal waving a towel at the smoke detector. Or worse you, you simply unplug it and plug it back in whenever you get around to it.

After the Protect shipped, additional testing determined that movement in an actual emergency might silence the detector. The feature was disabled on installed detectors and the Protect was removed from sale. Next says they're working on a fix, although, it's unclear how the update may change the feature.